I've noticed Rayovacs not leaking also. I've had some for years and no leaks.I have run ~25 non-cell cheapo cams on the 2-burst picture setting for the last five years, averaging ~1500 pics per season. Used all kinds of different batteries. Most of my leakages have been either late in the season when the weather gets cold (which is ~25 degrees give the South Louisiana climate) but primarily if I forget to take out batteries during storage is when most of the leakages and camera breakages occur. When you remove the cams from the field at the end of the season and put into storage (if you do this at all), you should immediately remove the batteries. I have never, once in all of this time seen a Rayovacs leak, either in the season, or during storage. Duracell will leak almost positively during storage, and Energizer is pretty bad as well. Rayovacs have been 100% perfect for me across all 5 seasons, so moving to exclusively Rayovacs this season. I am also going to try replacing the lithiums in my cell cams with Rayovacs and changing out every two months. I am not claiming Rayovas work well in cell cams as I am trying that this year for the first time, they have just been perfect in my non-cell cams in the Louisiana climate which barely sees more than 2 or 3 freezing days a year. Dont know if this experience would translate in a colder climates. Hope this helps..